AML M2500 Decoder - Manual (Page 62)

ABCDE12345
0123456789
C - 1
APPENDIX C - CODE 39 SPECIFICATIONS
Code 39 is a variable length alphanumeric code. Each character is made up of
nine elements, five bars and four spaces. Three of the elements are wide and
six are narrow. Code 39 is a popular choice for applications because:
- it is easy to print with low cost dot matrix printers
- large character set (A-Z, 0-9, 7 special characters)
- code can be extended to include the entire 128 ASCII character set
- variable length
CHARACTERISTICS:
Character Set: 26 uppercase letters (A - Z)
10 digits (0 - 9)
7 special characters (SPACE -.$/+%)
Symbol Length: Variable
Check Digit: Optional
Bi-directional Decoding: Yes
Maximum Density: 9.8 char./inch
(using .0075 inch narrow element)